On tenter hooks, and a rare weather phenomenon

The new steel yards, welded to a cranked shape, are being set up with the tentering gear. These mechanisms would allow the gap between the stones to be minutely adjusted, according to the speed of rotation of the sails. The layout has been deduced from evidence of the remaining parts of the originals.

Meanwhile, work is progressing on the new joists for the bin floor. Also, the stonework around the spliced beam ends on this floor is being reinstated.

We were treated to a 'fire rainbow' today - a coloured arc in the sky caused by light passing through ice crystals in high level cloud. I think the proper term is a circumhorizontal arc - quite a rare phenomenon at these latitudes.